针对热连轧纯钛卷时影响成材率的精轧翘头问题,利用有限元法研究轧制变形区的金属流动状况,发现纯钛精轧变形区的金属流动呈"w"型,与20钢轧制变形区的"c"型金属流动不同,表明普通碳钢的头部翘曲控制工艺不能完全适合纯钛卷轧制.分析了上下工作辊直径差、轧件上下表面温度差、道次压下率、氧化皮厚度、摩擦系数等对头部翘曲的影响规律,确定出轧件表面温差和摩擦系数不同是影响精轧翘头的显著因素.从温度控制角度出发制定了控制纯钛卷精轧头部翘曲的工艺措施,有效解决了钛卷精轧翘头问题,对于减少精轧切头损失、提高产品成材率具有实际应用价值.
参考文献
| [1] | Sang Heon Lee;Dong Nyung Lee.Analysis of deformation textures of asymmetrically rolled steel sheets[J].International Journal of Mechanical Sciences,20019(9):1997-2015. |
| [2] | 孙蓟泉;张海滨;于全成.热轧带钢头部翘曲原因分析[J].钢铁研究学报,2006(7):30-34. |
| [3] | 王飞龙;刘勇;李卫平;李俊洪.热轧粗轧扣翘头问题的仿真分析[J].钢铁,2010(4):46-49,75. |
| [4] | Denis Anders;Tobias Munker;Jens Artel;Kerstin Weinberg.A dimensional analysis of front-end bending in plate rolling applications[J].Journal of Materials Processing Technology,20126(6):1387-1398. |
| [5] | 王敬忠.板带轧制头部翘曲的研究现状[J].西安建筑科技大学学报（自然科学版）,2011(02):294-300. |
| [6] | M. Philipp;W. Schwenzfeier;F. D. Fischer;R. Wodlinger;C. Fischer.Front end bending in plate rolling influenced by circumferential speed mismatch and geometry[J].Journal of Materials Processing Technology,20071/3(1/3):224-232. |
| [7] | 胡衍生;程晓茹;李虎兴;宋耀华.中厚板轧制头部弯曲机理的探讨[J].钢铁,2003(6):28-31. |
| [8] | 杨常春;齐克敏;邱春林.异径异步轧制时热轧板带头部弯曲规律的实验研究[J].物理测试,2008(5):6-8. |
| [9] | M. Salimi;F. Sassani.Modified slab analysis of asymmetrical plate rolling[J].International Journal of Mechanical Sciences,20029(9):1999-2023. |
| [10] | P. P. Gudur;M. A. Salunkhe;U. S. Dixit.A theoretical study on the application of asymmetric rolling for the estimation of friction[J].International Journal of Mechanical Sciences,20082(2):315-327. |
| [11] | C. W. Knight;S. J. Hardy;A. W. Lees;K. J. Brown.Investigation into the influence of asymmetric factors and rolling parameters on strip curvature during hot rolling[J].Journal of Materials Processing Technology,20032(2):180-189. |
| [12] | 李学通;杜凤山;王敏婷;张晓峰.板材轧制头部翘曲的非线性有限元研究[J].钢铁研究学报,2005(5):43-47. |
| [13] | J. Jeswiet;P. G. Greene.Experimental measurement of curl in rolling[J].Journal of Materials Processing Technology,19981/3(1/3):202-209. |
| [14] | 颜莉;阮加虎;张博博;王佳欣;郭佳;孙琦;庞玉华.中厚板轧制轧件头尾翘曲研究进展[J].甘肃冶金,2011(3):1-4. |
| [15] | 任万波;李军;陈善华;于辉.纯钛精轧过程的高温变形行为及本构方程[J].钢铁钒钛,2015(1):32-37. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%